Cultivating implement.



No. 802,036. PATENTED OCT. 17, 1905. P. W. FRENCH.

GULTIVATING IMPLEMENT.

lnverior.

r l Attprneys APPLICATION FILED JUNE 27, 1905."

Witnesses FREDERICK WM. FRENCH, OF OAKLAND, CALIFORNIA.

CULTIVATING IMPLEMENT.

Specification of Letters Patent.

Patented. Oct. 1'7, 1905.

Application filed June 27,1905. Serial No. 267,271.

To all whom, it may concern.-

Be it known that I, FREDERICK WM. FRENCH, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented a new and useful Cultivating Im plement, of which the following I is a specification.

such shares, blades, or teeth, as they are sometimes called.

With these and other ends in view, which will readily appear as the natureof the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes and alterations within the scope of the invention may be resorted to when desired.

In said drawings, Figure 1 is a side elevation of a plow constructed in accordance with the principles of the invention. Fig. 2 is a perspective View showing a portion of a cultivator-head carrying a blade or tooth constructed in accordance with the principles of the invention. Fig. 3 is a sectional detail view, enlarged, taken on the plane indicated by the line 3 3 in Fig. 2. Fig. 4 is a horizontal sectional view, enlarged, taken approximately on the plane indicated by the line 4 4: in Fig. 2. Fig. 5 is a perspective detail view of a standard used in connection with the invention.

Corresponding parts in the several figures areindicated throughout by similar characters of reference.

The improved blade constituting the invention consists of an angle-bar, of steel or other suitable material, of equal transverse dimensions throughout, said angle-bar A being composed of what I shall designate as the inner and outer side members or flanges, designated, respectively, 1 and 2 and formed at an angle to each other of approximately fortyflve degrees. This angle-bar is preferably bent longitudinally upon the arc of a circle,

so as to present a curved front edge 3, as will be best seen in Fig. 1 of the drawings. The inner flange or side member of the blade is provided with a row of perforations 4 4, con.- centric with the front edge thereof, said perforations being countersunk at their outer edges, as at 5.

The improved blade is used 'in connection with a shank or standard S, having a straight upper portion 6 and a curved lower portion 7, which is concentric with the curvature of the blade and adapted to be fitted betweenthe wings or flanges of the latter. The said shank or standard is provided with perforations 8 for the passage of connecting means whereby it may be secured in position for operation. The curved portion of the standard has similar perforations 9 for the passage of connecting means, such as bolts 10, whereby it may be firmly connected with the blade A, said bolts being provided with truncated heads 11 to engage and to lie flush with the outer ends of the countersunk openings in the inner flanges or side members of the blades.

The blades A A are made right and left hand, so that the inner-side members of said blades may be placed in juxtaposition, as clearly indicated in Fig. 2 of the drawings. When thus employed, it is obvious that the enlarged or countersunk ends of the perforations 4: will be placed adjacent to each other, as clearly seen in Fig. 4E. Headed bolts, as 12, will under these circumstances be used for the purpose of connecting the blades with each other and with the standard S. The latter has in Fig. 2 been shown as mounted in a clip 13 upon the front side of a cultivator-head 14. In Fig. 1 a single blade A has been shown mounted upon a standard S, secured to a plowbeam 15, which is of ordinary construction and which has been shown as equipped with handles, as 16, at the rear end thereof, only one handle being v sible in the drawings.

It will be clearly understood that the blades of this invention may be manufactured of many different sizes and dimensions. When used singly, as in Fig. l, the said blades will naturally be larger than where a plurality of them are assembled in a single carryingframe, as will be the casein cultivators, harrows, and similar toothed implements. Under the form illustrated in Fig. 1 the inner side member or flange 1 may be termed the landside, while the side memberQ may be termed the moldboard, which latter, owing to the curvature of the entire member, will present a curved surface which will be effective in turn ing the sod. It is obvious that either a righthand or a left-hand plow may be made by simply inverting the blade end for end. A double plow may be made by connecting together two of the blades in the manner illustrated in Fig. 2. Said figure, however, is intended to illustrate more particularly the application of the invention to a cultivator, the dimensions of the parts being properly proportioned, as will be readily understood.

Under this invention an extremely simple and effective ground-engaging blade or member is provided, which, being manufactured in diiferent sizes, will be found extremely useful for cultivating implements of almost every kind and character. It is obvious that as the lower end of the blade wears it may be moved downwardly upon the shank or standard until the entire blade is practically worn out. Theupper and lower edges of the blades 19 and 20 are preferably parallel to each other and may be very readily sharpened whenever necessary by simply grinding the end edges. The device is simple, durable, easily adjusted and manipulated, and thoroughly efficient for the purposes for which it is intended.

In most cases the outer or moldboard member 2 of the blade will be made considerably Wider than the inner or landside member 1, as shown in the drawings. This, however, is not absolutely essential and the invention is susceptible of considerable modification in this respect. The members 1 and 2 may also be disposed at various angles with relation to each other.

Having thus described the invention, what is claimed is- 1. A blade for cultivating implements consisting of an angle-bar of equal transverse dimensions throughout bent to present a'curved front edge; one side being disposed in a plane parallel to the line of progress and provided with apertures.

2. A bladefor cultivating implements consisting of an angle-bar bent to present a curved shear edge and having one side disposed in a plane parallel to the line of progress and provided with exteriorlycountersunk perforations.

3. A cultivating-blade consisting of an anglebar, bent longitudinally, and provided with exteriorly-countersunk perforations near the free edge of one of its flanges; in combination with a holding-shank extending between the side members of the blade, and connecting-bolts having truncated heads.

at. A cultivating-blade including two anglebars bent on the arc of a circle and havingside members provided with registering apertures; in combination with a supporting member, and means for connecting said anglebars with each other and with the supportingmember.

5. A cultivating-bladeincluding two anglebars bent on the arc of a circle and having side members provided with registering apertures; in combination with a supporting member engaging between the side members of one of the angle-bars, and connecting means extending through said supporting member and the adjacent side members of the angle-bars.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

FREDERICK WM. FRENCH.

Witnesses GEORGE SAMUELs, M. WALSH. 

